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Relaxing Wrinkles in Jammed Interfacial Assemblies

Journal Article · · Angewandte Chemie
 [1];  [2];  [2];  [3];  [3];  [4];  [3];  [5];  [6]
  1. State Key Laboratory for Chemo/Bio-Sensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha 410082 China, Materials Sciences Division Lawrence Berkeley National Laboratory One Cyclotron Road Berkeley CA 94720 USA
  2. Materials Sciences Division Lawrence Berkeley National Laboratory One Cyclotron Road Berkeley CA 94720 USA
  3. State Key Laboratory for Chemo/Bio-Sensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha 410082 China
  4. Analytical Instrumentation Center Hunan University Changsha 410082 China
  5. Materials Sciences Division Lawrence Berkeley National Laboratory One Cyclotron Road Berkeley CA 94720 USA, The Molecular Foundry Lawrence Berkeley National Laboratory One Cyclotron Road Berkeley CA 94720 USA
  6. Materials Sciences Division Lawrence Berkeley National Laboratory One Cyclotron Road Berkeley CA 94720 USA, Polymer Science and Engineering Department University of Massachusetts Amherst MA 01003 USA, Advanced Institute for Materials Research (AIMR) Tohoku University 2-1-1 Katahira, Aoba Sendai 980-8577 Japan
Abstract

Dynamic covalent bonding has emerged as a mean by which stresses in a network can be relaxed. Here, the strength of the bonding of ligands to nanoparticles at the interface between two immiscible liquids affect the same results in jammed assemblies of nanoparticle surfactants. Beyond a critical degree of overcrowding induced by the compression of jammed interfacial assemblies, the bonding of ligands to nanoparticles (NPs) can be broken, resulting in a desorption of the NPs from the interface. This reduces the areal density of nanoparticle surfactants at the interface, allowing the assemblies to relax, not to a fluid state but rather another jammed state. The relaxation of the wrinkles caused by the compression reflects the tendency of these assemblies to eliminate areas of high curvature, favoring a more planar geometry. This enabled the generation of giant vesicular and multivesicular structures from these assemblies.

Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1997280
Journal Information:
Angewandte Chemie, Journal Name: Angewandte Chemie Journal Issue: 36 Vol. 135; ISSN 0044-8249
Publisher:
Wiley Blackwell (John Wiley & Sons)Copyright Statement
Country of Publication:
Germany
Language:
English

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